On Sun, Jan 25, 2015 at 5:05 AM, Neil Girdhar <mistersheik@gmail.com> wrote:

But you can remove Python/graminit.c and "make clean && make" works, right?

If you can write to the directory, yes. Except if you build in a way that you can't run pgen on the host system, like in a cross build (this may have been fixed with the last few rounds of cross build fixes) or when instrumenting Python. Checking these files in trades very minor "committer pain" (tossing merge conflicts and regenerating the files) for equally minor pain in the much more diverse group of people compiling CPython.

On Sat, Jan 24, 2015 at 11:00 PM, Nick Coghlan <ncoghlan@gmail.com> wrote:

On 25 Jan 2015 01:09, "Benjamin Peterson" <benjamin@python.org> wrote:
>
>
>
> On Sat, Jan 24, 2015, at 03:00, Nick Coghlan wrote:
> > On 20 January 2015 at 10:53, Benjamin Peterson <benjamin@python.org>
> > wrote:
> > >
> > >
> > > On Mon, Jan 19, 2015, at 19:40, Neil Girdhar wrote:
> > >> I was also wondering why files like Python/graminit.c are in the
> > >> respository? They generate spurious merge conflicts.
> > >
> > > Convenience mostly.
> >
> > It also gets us a round a couple of bootstrapping problems, where
> > generating some of those files requires a working Python interpreter,
> > which you may not have if you just cloned the source tree or unpacked
> > the tarball.
>
> We could distribute the generated files in tarballs as part of the
> release process.

It's far more developer friendly to aim to have builds from a source check-out "just work" if we can. That's pretty much where we are today (getting external dependencies for the optional parts on *nix can still be a bit fiddly - it may be worth maintaining instructions for at least apt and yum in the developer guide that cover that)

Cheers,
Nick.

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